I have used the product on my rose bushes to control black spot. We are now in the middle of the month of May and I have no black spot on my roses. I spray them every one and a half to two weeks from a tank sprayer with the addition of malathion to control insects.

Just picked up some of the ready to use spray for use on tomatoes. The bottle had settings for "stream" & "spray" but both settings just produced a stream which made getting good coverage on my tomato plants almost impossible and the amount of waste was excessive. I ended up having to transfer into a separate spray bottle I had that has an adjustable nozzle but even with it set to the tightest setting it was difficult to produce a spray. Had to squeeze the trigger very hard to produce a spray. No way to produce a spray with the original bottle it came in. The product is simply too thick to actually spray it on plants effectively. I will have to stick to another product that is thinner in texture and can produce a fine spray to get thorough coverage of plants. I don't even know if the product works yet or not, but even if it does I wouldn't buy it again because of the application issues.

This particular version of Daconil is a concentrate. This means it’s thick for a reason, you have to dilute in water as it states on the bottle. Saw a couple of comments about being too thick and having to put it in another bottle to spray. Maybe they put their review on the concentrate versus the ready to use since they mention spray/stream settings. But you do have to shake it well. Also if you call the phone number on the bottle to the product’s customer service (not the poison hotline), they can tell you if the product has expired or not. These products are meant to be kept in dark, cool areas and at specific temps. If you or the seller keeps it too long or in a bright hot greenhouse or shed — it will go bad or dry out quicker than it should. But either way, I call the manufacturer on every fungicide, insecticide, herbicide, miticide, or definitely any biologicals to make sure it’s still under the expiration date. When I buy, if not online, I also observe the area the products are kept in to see if it meets the products directions like dark, cool, under 77F. Many of these products code the expiration date, few put it in plain language we can easily figure out. Biologicals go bad quickly if not kept in proper conditions and once you mix these products, any of them, you need to keep them shook up and use immediately. I ask every manufacturer, every time if they can change their practice and put an actual date we can easily read. The vast majority will not do so because if we could easily see the date and realize it’s past expiration, or about to expire, we wouldn’t buy it. If I buy something in July, is it going to be good the next year or when I pull it off the shelf, does it only have a month or two before it expires or maybe it’s already gone. Then the seller would be wanting to return the item(s) or get credit. They figure if just a few call them ie the manufacturer, that’s what they eat but it wouldn’t be anywhere near what would get left on the shelf in the store. Or the sales staff would be pulling it off the shelf or they should and it would be coming back to them or credits to be issued. It’s a delicate situation, it’s fresh when it leaves them or should be and that’s up to the store to verify when it hits them. And it should have at least, at the very least 1 year or season’s worth in the bottle for the buyer to use. I believe 2 seasons are more appropriate. But some ingredients expire sooner than others. Also the seller nor the manufacturer knows how long it will take you to use it up, nor do they know where you live— freezing in Alaska, or burning up in hit dry Arizona, or humid and hot southern Miami or somewhere in-between in California or Virginia. Nor do they know how the store nor how the homeowner will store it ie do they follow the directions on the bottle cool, dark, and the temp does it say 77, refrigeration required, etc. . I imagine more people complain about products not working correctly due to their not using it correctly, storing it properly, and certainly because it’s already past the date it’s working at top efficiency.